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Ensure container metrics are registered with prometheus even without

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cadvisor http server

Fixes #13200
This commit is contained in:
Jimmi Dyson 2015-08-26 13:22:25 +01:00
parent b87077c270
commit 3a6701c85f
1 changed files with 25 additions and 23 deletions
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8
pkg/kubelet/cadvisor/cadvisor_linux.go
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@ -64,13 +64,10 @@ func New(port uint) (Interface, error) {
Manager: m, Manager: m,
} }
// Export the HTTP endpoint if a port was specified.
if port > 0 {
err = cadvisorClient.exportHTTP(port) err = cadvisorClient.exportHTTP(port)
if err != nil { if err != nil {
return nil, err return nil, err
} }
}
return cadvisorClient, nil return cadvisorClient, nil
} }
@ -79,12 +76,16 @@ func (cc *cadvisorClient) Start() error {
} }
func (cc *cadvisorClient) exportHTTP(port uint) error { func (cc *cadvisorClient) exportHTTP(port uint) error {
// Register the handlers regardless as this registers the prometheus
// collector properly.
mux := http.NewServeMux() mux := http.NewServeMux()
err := cadvisorHttp.RegisterHandlers(mux, cc, "", "", "", "", "/metrics") err := cadvisorHttp.RegisterHandlers(mux, cc, "", "", "", "", "/metrics")
if err != nil { if err != nil {
return err return err
} }
// Only start the http server if port > 0
if port > 0 {
serv := &http.Server{ serv := &http.Server{
Addr: fmt.Sprintf(":%d", port), Addr: fmt.Sprintf(":%d", port),
Handler: mux, Handler: mux,
@ -103,6 +104,7 @@ func (cc *cadvisorClient) exportHTTP(port uint) error {
err = serv.ListenAndServe() err = serv.ListenAndServe()
} }
}() }()
}
return nil return nil
} }